Air pollution

Class: 12
Unit 5: Air pollution (The reading)
Period: 30
Teacher: Dao Tan Canh

A I R P O L L U T I O N

The synonym of sick is …….
i l l
She is lying …….. the couch.
o n
This is a ……. of shoes.
The car is….running the truck.
p a i r
o u t
???
Rearrange the following letters to make the meaningful words or phrases to describe the picture and the film.
AIR POLLUTION
I. The Text :
(From the beginning to ?nitrogen dioxide.?)
Clean air provides us with
a healthy supply of oxygen.
When wastes are poured
into the atmosphere,
the
air becomes contaminated
and unpleasant to breathe.
This is air pollution.
Water vapour and carbon dioxide
occur in
the air
naturally.
Examples of air pollution are
dust storms,
volcanic eruption,
forest fires caused
by lightning,
pollen,
and marsh gases.
A large amount of air
pollution in cities
from sources other than
industry,
home heating, and
garbage
Vehicles also account for air pollution in the cities.
Automobile exhaust
contain carbon monoxide,
mainly automobiles,
comes
disposal.
and some industrial processes
an odourless gas

which
cannot be seen or tasted.
Nitric oxide is another
tail-pipe emission
that is highly poisonous
and may
sometimes change into the even more dangerous
nitrogen dioxide.
Clean air provides us with a healthy supply of oxygen. When wastes are the , the air becomes and unpleasant to breathe. This is air .
Water vapour and carbon dioxide occur in the air naturally. Examples of air pollution are dust storms, volcanic eruptions, forest fires caused by lightning, pollen, and marsh gases.
A large amount of air pollution in cities comes from sources other than industry, mainly automobiles, home heating, and garbage disposal.
Vehicles also air pollution in the cities. Automobile exhaust and some industrial processes contain carbon monoxide, an odourless gas which cannot be seen or tasted. Nitric oxide is another tail-pipe emission that is highly poisonous and may sometimes change into the even more dangerous nitrogen dioxide.

poured into
atmosphere
contaminated
pollution
vapour
carbon dioxide
dust
storms
volcanic
eruptions
lightning
pollen
marsh
gases
disposal
account for
account for
carbon monoxide
Nitric
oxide
dioxide
nitrogen
Water
1. Vocabulary:
- to pour (v)
pour into (v)
- atmosphere (n)
- to contaminate (v):

pollute
water vapour (n)
carbon dioxide (n):
dust storm (n)
- volcanic (adj)
- lightning (n)
volcano (n)
volcanic eruption (n)
CO2
Ex:
Ex:
poured into
atmosphere
contaminated.
When wastes are
the
, the air becomes
carbon dioxide
occur in the air
Water vapour
and
naturally.
- pollen (n)
marsh gas (n)
Ex: Examples of air pollution are dust storms, volcanic eruptions, forest fires caused by lightning, pollen, and marsh gases.
- disposal (n) :
garbage disposal (n)
account for something :
Ex:Vehicles also account for air pollution in the cities.
carbon monoxide (n):
- odour (n)
odourless (adj)
nitric oxide (n):
nitrogen dioxide (n):
Ex: Carbon monoxide, nitric oxide and nitrogen dioxide are

emissions that are highly poisonous.
NO2
CO
NO
explain the cause of something
throwing something away
1. VOCABULARY
● to pour (v)
● pour into (exp)
● atmosphere (n)
● to contaminate (v)
● water vapour (n)
● carbon dioxide (n)
● dust storm (n)
● volcanic (adj)
● volcano (n)
● volcanic eruption (n)
● lightning (n)
● pollen (n)
● marsh gas (n)
● disposal (n)
● garbage disposal (n)
● account for (exp)
● carbon monoxide (n)
● odour (n)
● odourless (adj)
● nitric oxide (n)
● nitrogen dioxide (n)
2. Multiple choice
Choose the best answer:
1. What is air pollution ?
Wastes make the air dirty.
Wastes make the air polluted.
Wastes make the air contaminated.
All are correct.
2. What two gases occur naturally in the air ?
Water vapour and carbon dioxide
Water vapour and marsh gases
Carbon monoxide and nitric oxide
Water vapour and nitric oxide
3. What are some sources of air pollution in cities ?
fatories, dust storms, vehicles, garbage disposal.
fatories, vehicles, volcanic eruptions, dust storms.
home heating, forest fires, garbage disposal.
fatories, vehicles, home cooking, garbage disposal.
b.
c.
d.
a.
b.
c.
d.
a.
b.
c.
d.
a.
x
x
x
x
x
x
x
x
x
(Paragraph1)
(Paragraph2)
(Paragraph3)
CO2
CH4
C
NO
NO2
CO
N
Match these symbols or formulas with their chemical substances.
oxygen
nitric oxide
carbon monoxide
nitrogen dioxide
carbon dioxide
carbon
marsh gas
nitrogen
O
4. Collecting information
Look back at the selection to find the information you need. List it quickly.
a. Paragraph 2 : List some examples of air pollution in nature.
They are
_____________________
_____________________
_____________________
dust storms
volcanic eruptions
forest fires
b. Paragraph 4 : Vehicles also account for air _______ in the cities. Automobile exhaust and some ________ processes contain ______________. Nitric oxide is an-other tail-pipe emission that is highly poisonous and may change into the even more dangerous ______________.
industrial
pollution
carbon monoxide
nitrogen dioxide
5. Choose the best answer :
1. Clean air provides us ……….. a healthy supply of oxygen.
2. The eruption of………. is one of the causes of air pollution.
3. Water is colourless and ……… .
4. Vehicles also account …….. air pollution in the cities.
a. Oxygen b. Carbon c. Nitric oxide d. Gas
5. ……… can change into nitrogen dioxide which is more dangerous .
with
a.
for
b.
x
c.
about
d.
in
a.
the earth
b.
volcano
c.
forest
d.
volcanic
a.
careless
b.
hopeless
c.
useless
d.
odourless
a.
to
b.
for
c.
on
d.
with
a.
Oxygen
b.
Carbon
c.
Nitric oxide
d.
Gas
x
x
x
x
x
x
x
x
x
x
x
x
x
x
What should you do to protect the air from pollution ?
Discuss the question:
Air
Dirty air
Clean air
6. Summary:
People
Good health
Bad health
Air pollution
In nature
In cities
Dust storms
Volcanic eruptions
Forest fires
Industry
Home heating
Automobiles
Garbage
o
co2
o
co2
No2
No2
co
co
No
No
o
o
7. Homework:
Learn new words by heart.
Write a short passage to summarize the
diagram above.
Prepare the new lesson:
Unit 5 (cont.) The rest of the reading
* New words : lead, smog, stack, sulphur,
release, hydrogen, fluoride, phosphate, hairspray
* Questions : - What is smog?
- What gas is the most serious?